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Finding the Fourth Proportional to 252,065.40, 347,837.13 and 156,570.18

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Solution

The fourth proportional to 252,065.40, 347,837.13 and 156,570.18 is: 216,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,065.40 : 347,837.13 = 156,570.18 : x
  2. Step 2: Convert to fraction form
    252,065.40/347,837.13 = 156,570.18/x
  3. Step 3: Cross multiply
    252,065.40x = 347,837.13 × 156,570.18
  4. Step 4: Simplify right side
    252,065.40x = 54,460,922,054.78
  5. Step 5: Solve for x
    x = 54,460,922,054.78/252,065.40
  6. Step 6: Final answer
    x = 216,058.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.